(Pre Comic)
"You're a human?!" His voice boomed, ringing in Flash's ears as the pegasus was shaken by the large Frenchman.

"Yes I am, now could you please put me down?" He asked, starting to get dizzy.

Jean did what he was told and set the human turned stallion down, allowing both of them to recompose.

"But how do I know he's telling the truth?" Jean thought to himself.

He held his hand up. "What's this called?"
"A hand."

"And these?" His wiggled his digits.
"Fingers."

"And this?" He pointed to his head.
"Hair."

His eyes narrowed, as he asked the stallion one final question.

"What is my accent?"

"French."

Both shared a grin.

"So..how did you meet your marefriend?"
————
(Post Comic)
"And 'Monsieur?' I'm not that much older than you, ya know."

————

Just two bros talking about mares. (｡•̀ᴗ-)

(Also mini headcanon that EQG Derpy and Flash are childhood friends. At this point in the comic though, he hasn't met pony Derpy.)